... High Performance wind turbines 400W 1.power:400W 2.voltage:12V/24V 3.type:cellular WELLSEE WS-WT400W 12V/24V high ... weight, low cut-in speed, free-maintenance , high reliability, easy installation, long lifetime, etc, especially ... can air, so that fans generate electricity with breeze wind truly.5. accuratly recognizing charing ... start electronic speed brake system High Performance wind turbines 400W